A new separation method for Micro-Doppler information of a target with rotating parts

Author

Li Kaiming ; Luo Ying ; Chi Long ; Zhang Qun

Author_Institution

Inst. of Telecommun. Eng., AFEU, Xi´an

fYear

2008

fDate

25-27 May 2008

Firstpage

1365

Lastpage

1369

Abstract

The classical range-Doppler algorithm canpsilat obtain clear ISAR image of a target with rotating parts. In spectrogram, the micro-Doppler information of the rotor blades is represented as the sinusoidal frequency modulation, whereas the information of main body is depicted as the form of straight lines. So the extraction of micro-Doppler is transformed to the separation of the sinusoids and straight lines. Based on this idea, a simple method of spectrogram cancellation is proposed, which can quickly achieve the purpose of separation and get clear ISAR image of main body. The effectiveness of the algorithm is proved by the simulation results.

Keywords

Doppler effect; frequency modulation; radar imaging; synthetic aperture radar; ISAR image; micro-Doppler information; rotor blades; separation method; sinusoidal frequency modulation; Chirp modulation; Data mining; Frequency modulation; Laboratories; Radar imaging; Radar scattering; Radar theory; Remote sensing; Spectrogram; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on

Conference_Location

Fujian

Print_ISBN

978-1-4244-2063-6

Electronic_ISBN

978-1-4244-2064-3

Type

conf

DOI

10.1109/ICCCAS.2008.4658020

Filename

4658020